Fuel Filter: Description and Operation

Fuel Supply Components:

Fuel Filter (High Pressure):

The fuel filter, located under the car forward of the fuel tank (along with the fuel pump), is a high pressure canister type fuel filter. The filter removes even very small (microscopic) particles from the fuel. Because of the high pressures and large volume of flow in the fuel system, tiny particles can erode away the sealing surfaces of fuel injectors and pressure regulators, causing injector leaks and fuel pressure loss. Larger particles can plug up the tiny orifices in injectors, restricting fuel, or collect between the sealing surfaces of injectors, preventing them from shutting off fuel completely.